Building Interior

Office Panel

As a key component in acoustical office panels, Johns Manville Dura-Glass® nonwovens are excellent sound absorbing structures. Nonwoven materials, due to their porosity, are a fitting material for application in sound attenuation.

Effective sound attenuating structures can be made economically using structured or layered wet-laid nonwoven fabrics. The nonwovens must be formed with an eye toward the properties well known to influence air flow through them at low sound pressures. These factors are thickness, porosity, tortuosity, and density. Air spaces within or behind the structures enhance sound absorption.

Americas Products

Glass Mat

TYPE

AREA WEIGHT

(gsm)

PROPERTIES

Dura-Glass® 8221

119

Dura-Glass® 82 series mats are nonwoven webs composed of glass fibers oriented in a random pattern and bonded together with a formaldehyde-free acrylic resin system in a wet laid process. The combination of fibers and binder form a product with exceptional strength, toughness, permeability and pleatable properties.

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